I have an Alpine CDA-9815 deck that I picked up 4-5 years ago and never got around to doing anything with. This is a nice older-ish school Alpine unit. It can be run either as a 3-way active setup with high/mid/low output or as a conventional front/rear/sub. 4 channels of amplification with I think 27W RMS which is pretty high for a deck. This runs either the high/mid or else the front/rear outputs. Also has six 4V pre-outs to run with separate amps.

The XM tuner hooks up via AI-net. I haven't actually tested this - I'll try to do so.